Hi All,
Just posting this as it might help someone who is trying to do what took me a while to figure out.

I wanted to set up my 2850 to load balance between BT Infinity (VDSL) and my Virgin Media cable broadband.

High level steps:
---Configure the 2850 as per Mikey's Guide for connection to the BT Infinity service: http://www.draytek.co.uk/support/kb/kb_vigor_v2850_setup.html

---Configure the VM Super Hub so it is in Modem mode, as per VM's guid here (note you can only use the ethernet port next to the coax connection): http://help.virginmedia.com/system/selfservice.controller?CMD=VIEW_ARTICLE&ARTICLE_ID=412750&CURRENT_CMD=SEARCH&CONFIGURATION=1002&PARTITION_ID=1&USERTYPE=1&LANGUAGE=en&COUNTY=us&VM_CUSTOMER_TYPE=Cable

---Plug the active ethernet port from the cable modem into the WAN ethernet port on the 2850
---Login to your 2850 and go to WAN, general setup, WAN 2. Display name set to "Virgin Media" and Enable should be "Yes"
---From the WAN select Internet Access, for WAN 2 (Virgin Media) select Static or Dynamic IP press "Details Page"
---Ensure Static or Dynamic IP is enabled, and all the rest disabled. Ensure 'Obtain an IP address automatically' is selected
---Reboot and you should be done!

Hope that helps

Thanks i confirm that is the correct order
May i ask what package are you with VM and what speeds are you getting with wan 2?also what firmware are you using?
Thanks

I'm on the 120 Mb/p with VM and the Maximum with BT Infinity.

I reliably get 60ish Mb/s with each.

Using 3.6.2_232201

I know an update is available. And will update soon.

Thanks for your time to reply my question and enjoy your new modem
Got the same as well but with adsl & VM